Managing Serviceguard Extension for SAP Version B.05.10, September 2010

The /usr/sap/tmp might or might not be part of the local root file system. This is the working
directory of the operating system collector process saposcol. The size of this directory is usually
not more than a few Megabytes.
Database Instance Storage Considerations
SGeSAP internally supports clustering of database technologies of different vendors. The vendors
have implemented individual database architectures. The storage layout for the SGeSAP cluster
environments needs to be discussed individually for each of the following:
• Oracle Single Instance RDBMS
• Oracle Real Application Clusters
• MAXDB Storage Considerations
• DB2 Storage Considerations
Table 2-6 Availability of SGeSAP Storage Layout Options for Different Database RDBMS
Cluster Software BundlesSGeSAP Storage
Layout Options
Supported
Platforms
DB Technology
1. Serviceguard or any Serviceguard Storage
Management bundle (for Oracle)
2. SGeSAP
3. Serviceguard HA NFS Toolkit
PA 9000 ItaniumOracle Single-Instance
1. Serviceguard
2. SGeSAP
3. Serviceguard HA NFS Toolkit (opt.)
idle standby
1. Serviceguard Cluster File System (for Oracle)
2. SGeSAP
CFS
1. Serviceguard Cluster File System for RAC
2. SGeSAP
CFSOracle Real
Application Cluster
1. Serviceguard or any Serviceguard Storage
Management bundle
2. SGeSAP
3. Serviceguard HA NFS Toolkit
NFSSAPDB MAXDB
1. Serviceguard or any Serviceguard Storage
Management bundle
2. SGeSAP
3. Serviceguard HA NFS Toolkit
NFSItaniumIBM DB2
Oracle Single Instance RDBMS
Single Instance Oracle databases can be used with all three SGeSAP storage layout options. The
setup for NFS and NFS Idle Standby Clusters are identical.
Oracle databases in SGeSAP NFS and NFS Idle Standby Clusters
Oracle server directories reside below /oracle/<DBSID>. These directories get shared via the
database package.
In addition, any SAP Application Server needs access to the Oracle client libraries, including the
Oracle National Language Support files (NLS) shown in Table 2-7 NLS Files Default Location.
The default location where the client NLS files get installed differs with the SAP kernel release
used. See the table below.
Database Instance Storage Considerations 29